APA (7th ed.) Zitazioa
Winkelmann, R. (2008). Econometric Analysis of Count Data (Fifth edition.). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-78389-3
Chicago Style (17th ed.) Zitazioa
Winkelmann, Rainer. Econometric Analysis of Count Data. Fifth edition. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. https://doi.org/10.1007/978-3-540-78389-3.
MLA (9th ed.) Zitazioa
Winkelmann, Rainer. Econometric Analysis of Count Data. Fifth edition. Springer Berlin Heidelberg, 2008. https://doi.org/10.1007/978-3-540-78389-3.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.